xenocara/lib/libXi/man/XIChangeHierarchy.man

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.\" Title: xichangehierarchy
.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
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.\" Date: 06/19/2019
.\" Manual: \ \&
.\" Source: \ \&
.\" Language: English
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.TH "XICHANGEHIERARCHY" "libmansuffix" "06/19/2019" "\ \&" "\ \&"
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.SH "NAME"
XIChangeHierarchy \- change the device hierarchy\&.
.SH "SYNOPSIS"
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.nf
#include <X11/extensions/XInput2\&.h>
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Status XIChangeHierarchy( Display *display,
XIAnyHierarchyChangeInfo *changes,
int num_changes);
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display
Specifies the connection to the X server\&.
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num_changes
Specifies the number of elements in changes\&.
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changes
Specifies the changes to be made\&.
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.SH "DESCRIPTION"
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XIChangeHierarchy modifies the device hierarchy by creating or
removing master devices or changing the attachment of slave
devices\&. If num_changes is non\-zero, changes is an array of
XIAnyHierarchyChangeInfo structures\&. If num_changes is equal or less than
zero, XIChangeHierarchy does nothing\&.
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XIChangeHierarchy processes changes in order, effective
immediately\&. If an error occurs, processing is aborted and the
error is reported to the client\&. Changes already made remain
effective\&.
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The list of changes is any combination of
XIAnyHierarchyChangeInfo\&. The type of a hierarchy change can be
XIAddMaster, XIRemoveMaster, XIAttachSlave or XIDetachSlave\&.
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typedef union {
int type;
XIAddMasterInfo add;
XIRemoveMasterInfo remove;
XIAttachSlave attach;
XIDetachSlave detach;
} XIAnyHierarchyChangeInfo;
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typedef struct {
int type; /* XIAddMaster */
char* name;
Bool send_core;
Bool enable;
} XIAddMasterInfo;
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typedef struct {
int type; /* XIRemoveMaster */
int deviceid;
int return_mode;
int return_pointer;
int return_keyboard;
} XIRemoveMasterInfo;
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typedef struct {
int type; /* XIAttachSlave */
int deviceid;
int new_master;
} XIAttachSlaveInfo;
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typedef struct {
int type; /* XIDetachSlave */
int deviceid;
} XIDetachSlaveInfo;
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XIAddMasterInfo creates a new master pointer and a new
master keyboard labelled "name pointer" and "name keyboard"
respectively\&. If sendCore is True, the devices will send core
events\&. If enable is True, the device is enabled immediately\&.
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XIAddMasterInfo can generate a BadValue error\&.
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XIRemoveMasterInfo removes device and its paired master device\&.
If returnMode is XIAttachToMaster, all pointers attached to
device or its paired master device are attached to
returnPointer\&. Likewise, all keyboards are attached to
returnKeyboard\&. If returnMode is XIFloating, all attached
devices are set to floating\&.
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XIRemoveMasterInfo can generate a BadValue and a BadDevice
error\&.
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XIAttachSlaveInfo attaches device to new_master\&. If the device
is currently attached to a master device, it is detached from
the master device and attached to the new master device\&.
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XIAttachSlaveInfo can generate a BadDevice error\&.
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XIDettachSlaveInfo deattaches device from the current master
device and sets it floating\&. If the device is already floating,
no changes are made\&.
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XIDetachSlaveInfo can generate a BadDevice error\&.
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XIChangeHierarchy generates an XIHierarchyEvent if any
modifications were successful\&.
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.SH "DIAGNOSTICS"
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BadDevice
An invalid device was specified\&. The device does not
exist or is not a appropriate for the type of change\&.
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BadValue
Some numeric value falls out of the allowed range\&.
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